BIOLOGY 93 UCI 1 KEY TERMS WITH DETAILED ANSWER
Hypothesis - CORRECT ANSWER-a tentative answer to a well framed question - an explanation on trial
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Prediction - CORRECT ANSWER-A logical statement about what will happen if the hypothesis is correct.
Experiment - CORRECT ANSWER-a repeatable procedure that is used to test a hypothesis (a scientific test carried under controlled condition)
Variable - CORRECT ANSWER-factors that vary in an experiment
Controlled Experiment - CORRECT ANSWER-An experiment in which all factors are identical except the one being tested. Compares an experimental group with a control group
Independent Variable - CORRECT ANSWER-the factor manipulated by the researchers
Dependent Variable - CORRECT ANSWER-a factor that is measured in the experiment
Theory - CORRECT ANSWER-1)Broader than a hypothesis. 2)broad enough to spin off many new hypotheses that can be tested. 3) Supported by a great body of evidence
Science - CORRECT ANSWER-an approach to understanding the natural world
Element - CORRECT ANSWER-is a chemical substance that cannot be broken down to other substances
Compound - CORRECT ANSWER-a substance consisting of 2 or more different elements combined in a fixed ratio.
Neutron - CORRECT ANSWER-a atomic particle that is electrically neutral (0)
Proton - CORRECT ANSWER-a atomic particle with one unit of positive charge
Electron - CORRECT ANSWER-a atomic particle with one unit of negative charge
Non polar Covalent Bond - CORRECT ANSWER-a bond where electrons are shared equally among two atoms or where symmetric structure causes polarity to cancel out.
Polar Covalent Bond - CORRECT ANSWER-Where asymmetric structure and unequal sharing of electrons between two atoms with different electronegativity values create partial charges within the molecule.
Ionic Bond - CORRECT ANSWER-When an electron is attracted to another atom of higher electronegativity and the resulting charges create a ionic attraction.
Ion - CORRECT ANSWER-A charged atom or group of atoms that is charged due to a net loss or gain of electrons
Cation - CORRECT ANSWER-a positively charged ion
Anion - CORRECT ANSWER-a negatively charged ion
Salt - CORRECT ANSWER-A compound resulting from the formation of ionic bonds; also called an ionic compound [Show Less]